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1 package org.apache.turbine.util; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache Turbine" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * "Apache Turbine", nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 57 import org.apache.turbine.services.pull.ApplicationTool; 58 import java.lang.reflect.Method; 59 60 /*** 61 * Utility class to allow the easy inclusion of 62 * images in templates: <img src="$content.getURI("image.jpg")"> 63 * 64 * @author <a href="mailto:criley@ekmail.com">Cameron Riley</a> 65 * @author <a href="mailto:jvanzyl@periapt.com">Jason van Zyl</a> 66 * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> 67 * @version $Id: ContentURI.java,v 1.1.1.1 2001/08/16 05:09:38 jvanzyl Exp $ 68 */ 69 public class ContentURI 70 extends DynamicURI 71 implements ApplicationTool 72 { 73 /*** stores the context path for servlet 2.1+ compliant containers */ 74 private String contextPath; 75 76 /*** 77 * Constructor 78 * 79 * @param data a RunData instance 80 */ 81 public ContentURI (RunData data) 82 { 83 super(data); 84 init(data); 85 } 86 87 /*** 88 * Default constructor 89 */ 90 public ContentURI () 91 { 92 } 93 94 /*** 95 * Initialize this object using the data given (ApplicationTool 96 * method). 97 * 98 * @param data assumed to be a RunData instance 99 */ 100 public void init(Object data) 101 { 102 // we blithely cast to RunData as the runtime error thrown 103 // if data is null or another type is appropriate. 104 init((RunData)data); 105 } 106 107 /*** 108 * Refresh method - does nothing 109 */ 110 public void refresh() 111 { 112 // empty 113 } 114 115 /*** 116 * Initialize this object using the given RunData object 117 * 118 * @param data a RunData instance 119 */ 120 public void init(RunData data) 121 { 122 super.init(data); 123 try 124 { 125 Class runDataClass = RunData.class; 126 Method meth = runDataClass.getDeclaredMethod("getContextPath", null); 127 contextPath = (String)meth.invoke(data, null); 128 } 129 catch (Exception e) 130 { 131 /* 132 * Ignore a NoSuchMethodException because it means we are 133 * using Servlet API 2.0. Make sure scriptName is not 134 * null. 135 */ 136 contextPath = ""; 137 } 138 } 139 140 /*** 141 * Returns a URI pointing to the given content (where content is a 142 * path relative to the webapp root. 143 * 144 * @param pathToContent a path relative to the webapp root 145 */ 146 public String getURI(String pathToContent) 147 { 148 StringBuffer sb = new StringBuffer(); 149 sb.append (getServerScheme()); //http 150 sb.append ("://"); 151 sb.append (getServerName()); //www.foo.com 152 sb.append (":"); 153 sb.append (getServerPort()); //port webserver running on (8080 for TDK) 154 //the context for tomcat adds a / so no need to add another 155 sb.append (contextPath); //the tomcat context 156 sb.append ("/"); 157 sb.append (pathToContent); 158 return (sb.toString()); 159 } 160 }

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